Johnson has averaged 7.6 points, 2.8 rebounds, and 1.3 assists over 21.6 minutes per game while shooting 40% from behind the arc (and 100% from the free throw line to this point). He's made the most of his opportunity since being called up from the D-League's Rio Grande Valley Vipers, often looking like the most energetic player on the floor. Johnson actually had his worst game as a Celtic last night, going scoreless for the first time while picking up 2 fouls in just 3 minutes of action.